Device foe railway sigials



(No Model.)

V J. T. CARTER. V TRIPP-ING DEVICE FOR RAILWAY SIGNALS.

No. 402,505. Patented Apr. 30, 1889.

Witness/ea 6%, 23

' UNITED Srnrns PATENT OFFICE,

JOHN T. CARTER, OF-BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TO FRANK J .lllLBERT, OF SAME PLACE.

. TRIPPING DEVICE FOR RAILWAY-SIGNALS.

SPECIFICATION forming part of Letters Patent No. 402, 505, dated April 30, 1889.

Application filed January 22, 1889. fierial No. 297,224. (No model.)

T0 and whom it may concern.-

Be it known that I, J QfiN T. CARTER, of Baltimore, in the State of Maryland, have in vented certain new and useful Improvements in Tripping Devices for Railway-Signals; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying. drawings, and to the letters of reference marked thereon,which form part of this speoifiation.

My invention relates to an improved trip or mechanism to be located upon a railroadtrack beside a rail to be operated by the wheels of a passing car or train. 7

The object of the invention is to provide an improved trip or mechanism to be placed beside a railroad-rail and utilize the force and weight of the passing cars to operate danger andother signals, gates, &c.

The object is accomplished by, and my invention consists in, certain novel features of construction and combinations of parts, more fully described hereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a detached perspective view of the trip. Fig. 2 is a side elevation of the various parts detached, the operating-levers being shown partially broken away.

In the drawings, the reference-letter a indicates a frog, base, or bed casting suitably securedsay to the sleepersclose to and extending along beside the inner side of a rail,

, and this supporting and protecting frog is preferably cast in one piece, and consists of the bottom horizontal flanges or pieces, I) 12, leaving an opening between their inner ends, as shown, and having sockets c c at their outer ends open on their inner sides, and the outer side of the frog is closed or provided with an upwardly-extending side or flange, d, extending throughout the longitudinal length of the same and extending upwardly from the bottom flanges a suitable distance, and the upper longitudinal edge of this side is sloped from the ends upwardly toward the center, so that the vertical height of the side is greater at the center than at the ends. The opposite the parts.

A pair of toggle links or levers, e e, are lon- 'gitudinally located in the base, and are hinged or pivoted together, so that their adjoining pivoted ends will be located at the center of the base above the opening between the bottom plates, and these ends are normally on a level with the middle of the top edge of the side flange, and from thence the links extend downwardly toward the opposite ends of the base, with their ends resting loosely upon the bottom flanges and extending into the sockets to allow longitudinal play. The ends of the links are slotted or bifurcated, as shown at f, and the sockets are provided with vertical rigid pins g, loosely extending through the slots to guide the links and movably hold the same upon the bottom flanges, and the links are further loosely confined by pins h, secured to the same and extending loosely through the bottoms of the frog to limit the upward movement of the levers.

In their normal position the hinged upper ends of the levers rest just beside the head of the rail, and are supported in this position by and bear directly upon the upper curved edge of a vertical bar or head, t, extending up in the opening between the bottom flanges, and the head is loosely secured to the frog to allow vertical movement of the head by a longitudinal slot, j, in the same, and a nut and bolt or headed pin, 10, secured to the frog and extending loosely through the slot. The lower end of the head is extended downwardly, as shown, and pivoted to one arm of a bell-crank lever, Z, pivoted at its elbow in a suitable box beneath the track to swing in avertical plane, 0 and the opposite arm of the lever is connected with a signal or other device it is desired to operate. For instance, this device can be used to actuate the signal shown in my pending application, Serial No. 290,283.

It is evident that when a train is passing the car-wheel flanges will depress the hinged ends of the levers and move the outer ends of the same into the sockets and depress the head, and consequently rock the bell-crank 10o lever and move the mechanism to be operated, and when the lever is swung in the opposite direction the parts are returned to their normal position.

\Vhat I claim is- 1. A trip comprising a supporting and protecting frog adapted to be secured beside a railroad-rail and provided with an upwardlycxtending flange on its outer side and horizontal bottom bearing-flanges, apair of levers longitudinally located on said frog with their upper ends hinged together and their opposite free ends confined and movable on said bottom flanges, a head loosely secured to the frog to allow vertical movement and having a rounded upper end upon which the hinged ends of the levers rest, and an elbow-lever pivotally secured to the lower end of said head, substantially as described.

2. A trip comprising a supporting and protecting frog adapted to be secured beside a rail and provided with an upwardly-extending flange at its outer side and with bottom bearing-flanges, the ends of the frog having sockets open on their inner sides, a pairfof levers longitudinally located on the. frog hinged together at their upper adjoining ends and having their opposite ends loosely extending into said socket-s, stops or guides for said levers, and a head operated by the le- I vfrog and extending loosely through the slot,

substantially as described.

4. A trip comprising a frog having bottom bearing-flanges and sockets, levers movably located in vthe .frog with their ends in the sockets and bearing on the flanges, guiding pins for the same, and a head upon which the levers rest loosely secured to the frog by a pin andslot, substantially as described.

In testimony that I claim the foregoingas my own I affix my'signature in presence of two witnesses.

JOHN T. CARTER. Witnesses:

0. E. DUFFY, lIUBERr E. PEOK. 

